
    *{
        padding:0px;
        margin:0px;
        box-sizing: border-box;
    }
    body,html{
        width: 100%;
    }
    body{
        overflow-x: hidden;
    }
    ul{
        list-style: none;
    }
    a{
        text-decoration: none;
        color: inherit;
        -webkit-tap-highlight-color:transparent;
    }
    .flex{
        display:box;
        display: -webkit-box; 
        display: -moz-box;
        display: -webkit-flex; 
        display: -moz-flex; 
        display: -ms-flexbox;
        display: flex;
    }
    .flex-align-items{
        -webkit-box-pack: center;
        -ms-flex-pack: center;
        -moz-box-pack:center;
        -webkit-align-items: center;
        align-items: center;
    }
    .flex-justify-content{
        justify-content: center;
        -webkit-box-align: center;
        -ms-flex-align: center;
        box-align:center;
    }
    .fluid{
        width: 1300px;
        margin: 0px auto;
    }
    
    
    .container{
        transition:all ease .5s;
    }
    
    a{
        -webkit-tap-highlight-color:transparent;
    }
    
    body{
        overflow-y: hidden;
    }
    header .navSide{
        position: fixed;
        left: 0px;
        overflow: hidden;
        top: 0px;
        width:80px;
        background: #000;
        z-index: 20;
        height: 100%;
        transition: opacity 1s ease,width .5s,transform .5s ease;
        color: #fff;
    }
    header .navSide .navBtn{
        padding:10px 0px;
        
    }
    header .navSide .navBtn>*{
        cursor: pointer;
    }
    header .navSide .navBtn img{
        display: block;
        margin-left: 30px;
        
        transition:all .5s ease;
        -webkit-tap-highlight-color:transparent;
    }
    header .navSide .navBtn .btnTip{
        width: 50px;
        height: 20px;
        overflow: hidden;
        position: relative;
        left:20px;
        transition: all ease .5s;
    }
    header .navSide .navBtn .btnTip span{
        position: absolute;
        width: 100%;
        height: 100%;
        line-height: 20px;
        font-size: 12px;
        text-align: center;
        opacity: 0;
        transition: all .5s ease-out;
    }
    header .navSide .navBtn .btnTip span:first-child{
        transform: translate(-100%,0%);
    }
    header .navSide.back .navBtn .btnTip span:last-child,
    header .navSide.menu .navBtn .btnTip span:first-child{
        transform: translate(0%,0%);
        opacity: 1;
    }
    header .navSide .navBtn .btnTip span:last-child{
        transform: translate(100%,0%);
    }
    header .navSide nav{
        width: 300px;
        height: calc(100% - 70px);
        overflow: hidden;
        flex-direction: column;
    }
    
    header .navSide nav>p{
        padding-top: 15px;
        margin-bottom:15px;
        
        margin-left: 80px;
        transition: all ease .5s;
    }
    header .navSide nav>p span{
        display: block;
        border-bottom: 1px solid #e8e8e8;
    }
    header .navSide nav>p span img{
        display: block;
        border: 1px solid #e8e8e8;
        border-bottom-width: 0px;
        
    }
    header .navSide nav .contn{
        flex: 1;
        overflow: hidden;
    }
    header .navSide nav .contn .box{
        overflow-x:hidden;
        overflow-y: auto;
    }
    header .navSide nav .contn .box::-webkit-scrollbar{
        width: 6px;
        height: 6px;
        
    }
    header .navSide nav .contn .box::-webkit-scrollbar-thumb{
        border-radius: 3px;
        background: rgba(255,255,255, .15);
        
    }
    header .navSide nav .contn .box:hover::-webkit-scrollbar-thumb{
        background: rgba(255,255,255, .2);
    }
    header .navSide nav .contn .box::-webkit-scrollbar-track{
        background: rgba(0,0,0,0);
    }
    header .navSide nav .contn .box .middle{
        width:317px;
        text-align:left;
    }
    header .navSide nav .contn .middle>ul{
        padding-left: 17px;
        overflow: hidden;
    }
    header .navSide nav .contn .middle>ul>li{
        float: left;
        width: 100%;
        transition: all ease .5s;
    }
    header .navSide nav .contn .middle>ul>li .col{
        float:right;
        width: 220px;
    }

    header .navSide nav .contn .middle>ul>li .col>p,
    header .navSide nav .contn .middle>ul>li .col>a{
        padding:15px 0px;
        position: relative;
        font-size: 18px;
        transition: all ease .5s;
        cursor: pointer;
        color: #fff;
        -webkit-tap-highlight-color:transparent;
    }
    header .navSide nav .contn .middle>ul>li .col a{
        display: block;
    }

    header .navSide nav .contn .middle>ul>li .col>p span{
        position: absolute;
        right: 5px;
        top:50%;
        transform: translateY(-50%);
        cursor: pointer;
        transition: all ease .5s;
        display: inline-block;
        width: 14px;
        text-align: center;
        color: #fff;
    }
    header .navSide nav .contn .middle>ul>li .col>p span.click{
        opacity: 0;
    }
    header .navSide nav .contn .middle>ul>li.active .col>p,
    header .navSide nav .contn .middle>ul>li.active .col>a{
        color: #d93e32;
    }

    header .navSide nav .contn .middle>ul>li .col .line{
        width: 100%;
        height: 2px;
        display: block;
        background: #fff;
        transform-origin: left;
        transform: scaleX(0);
        transition: .5s ease all;
    }

    header .navSide nav .contn .middle>ul>li .col .sonMenu{
        height: 0px;
        overflow: hidden;
        transition: all ease .5s;
        left:0px;
        /*background: rgb(26,26,26);
        z-index: 3;
        width: 100%;
        padding-left: 60px;
        position: absolute;*/
    }
    header .navSide nav .contn .middle>ul>li .col .sonMenu ul{
        padding-bottom: 15px;
    }
    header .navSide nav .contn .middle>ul>li .col .sonMenu ul li{
        font-size: 16px;
        cursor: pointer;
        -webkit-tap-highlight-color:transparent;
    }
    header .navSide nav .contn .middle>ul>li .col .sonMenu ul li a{
        width:50%;
        position: relative;
        right: 50%;
    }
    header .navSide nav .contn .middle>ul>li .col .sonMenu ul li a span{
        border-bottom: 1px solid transparent;
        transition: all ease .5s;
        
        display: block;
        color: #Fff;
        padding:10px 0px;
    }
    header .navSide nav .contn .middle>ul>li .col .sonMenu ul li.active span{
        border-color:#fff;
    }

    
    
    
    footer .contact .head{
        background: #333;
    }
    footer .contact .head p{
        padding-top: 40px;
        padding-bottom:40px;
        position: relative;
        align-items: flex-end;
    }
    footer .contact .head p span{
        display: inline-block;
        color: #fff;
    }
    footer .contact .head p .eng{
        font-size: 54px;
        line-height: 54px;
        margin-right: 20px;
        font-weight: bold;
    }
    footer .contact .head p .chn{
        font-size: 36px;
    }
    footer .contact .head p .cell{
        font-size: 30px;
        line-height:30px;
        position: absolute;
        height: 50px;

        padding:0px 15px;
        line-height: 50px;
        right: 30px;
        top: 50%;
        transform: translateY(-50%);
    }
    footer .contact .head p .cell .border{
        background: #fff;
    }
    footer .contact .head p .cell .border.vertical{
        width: 1px;
        height: 100%;
    }
    footer .contact .head p .cell .border.horizontal{
        height: 1px;
        width: 100%;
    }
    footer .contact .head p .cell .top{
        transform-origin: left;
        transform:scaleX(0);
        animation: topChange 3.2s ease forwards infinite;
    }
    footer .contact .head p .cell .right{
        transform-origin: top;
        transform:scaleY(0);
        animation: rightChange 3.2s ease forwards infinite;
        animation-delay: .4s;
    }
    footer .contact .head p .cell .bottom{
        transform-origin: right;
        transform:scaleX(0);
        animation: bottomChange 3.2s ease forwards infinite;
        animation-delay: .8s;
    }
    footer .contact .head p .cell .left{
        transform-origin: bottom;
        transform:scaleY(0);
        animation: leftChange 3.2s ease forwards infinite;
        animation-delay: 1.2s;
    }
    @keyframes topChange{
        0%{transform-origin: left;transform:scaleX(0);}
        12.5%{transform-origin: left;transform:scaleX(1);}
        25%{transform-origin: left;transform:scaleX(1);}
        37.5%{transform-origin: left;transform:scaleX(1);}
        50%{transform-origin: right;transform:scaleX(1);}
        62.5%{transform-origin: right;transform:scaleX(0);}
        75.5%{transform-origin: right;transform:scaleX(0);}
        87.5%{transform-origin: right;transform:scaleX(0);}
        100%{transform-origin: left;transform:scaleX(0)}
    }
    @keyframes rightChange{
        0%{transform-origin: top;transform:scaleY(0);}
        12.5%{transform-origin: top;transform:scaleY(1);}
        25%{transform-origin: top;transform:scaleY(1);}
        37.5%{transform-origin: top;transform:scaleY(1);}
        50%{transform-origin: bottom;transform:scaleY(1);}
        62.5%{transform-origin: bottom;transform:scaleY(0);}
        75.5%{transform-origin: bottom;transform:scaleY(0);}
        87.5%{transform-origin: bottom;transform:scaleY(0);}
        100%{transform-origin: top;transform:scaleY(0)}
    }
    @keyframes bottomChange{
        0%{transform-origin: right;transform:scaleX(0);}
        12.5%{transform-origin: right;transform:scaleX(1);}
        25%{transform-origin: right;transform:scaleX(1);}
        37.5%{transform-origin: right;transform:scaleX(1);}
        50%{transform-origin: left;transform:scaleX(1);}
        62.5%{transform-origin: left;transform:scaleX(0);}
        75.5%{transform-origin: left;transform:scaleX(0);}
        87.5%{transform-origin: left;transform:scaleX(0);}
        100%{transform-origin: right;transform:scaleX(0)}
    }
    @keyframes leftChange{
        0%{transform-origin: bottom;transform:scaleY(0);}
        12.5%{transform-origin: bottom;transform:scaleY(1);}
        25%{transform-origin: bottom;transform:scaleY(1);}
        37.5%{transform-origin: bottom;transform:scaleY(1);}
        50%{transform-origin: top;transform:scaleY(1);}
        62.5%{transform-origin: top;transform:scaleY(0);}
        75.5%{transform-origin: top;transform:scaleY(0);}
        87.5%{transform-origin: top;transform:scaleY(0);}
        100%{transform-origin: bottom;transform:scaleY(0)}
    }
    footer .contact .form{
        padding-top:70px;
        padding-bottom:60px;
        font-size: 14px;
    }
    footer .contact .form .row{
        overflow: hidden;
    }
    footer .contact .form form {
        padding: 0px 20px;
    }

    footer .contact .form form p{
        padding:13px 0px;
        border-top:1px solid #000;
        border-bottom:1px solid #000;
    }
    footer .contact .form .row p{
        float: left;
        width: 24%;
        overflow: hidden;
    }
    footer .contact .form .row p>*{
        float: left;
    }
    footer .contact .form .row p + p{
        margin-left: 14%;
    }
    footer .contact .form form label{
        width:45px;
        height: 24px;
        line-height: 24px;
    }
    footer .contact .form form input{
        width: calc(100% - 45px);
       height:24px;
       outline: none;
       border-width: 0px;
       background: transparent;
    }
    footer .contact .form form>p{
        margin-top:40px;
    }
    footer .contact .form .submit{
        border-width: 0px;
        border-top:1px solid #000;
        border-bottom:1px solid #000;
        background: transparent;
        width: 24%;
        display: block;
        height: 50px;
        line-height: 50px;
        outline: none;
        cursor: pointer;
        margin:0px auto;
        margin-top:50px;
    }
    footer .footage{
        padding-top:30px;
        padding-bottom:10px;
        font-size: 14px;
        background: #333;
        color: #fff;
    }
    footer .footage .fluid{
        position: relative;
        padding: 0px 15px;
    }
    footer .footage ul{
        overflow: hidden;
    }
    footer .footage li{
        width: 20%;
        float: left;
    }
    footer .footage li:first-child{
        width: 40%;
    }
    footer .footage li:first-child img{
        display: block;
    }
    footer .footage li .line{
        width: 40px;
        height: 1px;
        margin-right: 20px;
        background: white;
    }
    footer .footage li .title{
        font-size: 16px;
    }
    footer .footage li span{
        display: block;
        margin-top: 10px;
    }
    footer .footage li span:nth-child(2){
        margin-top:30px;
        
    }
    footer .footage .fluid>p{
        position: absolute;
        right:15px;
        bottom:0px;
        overflow: hidden;
    }
    footer .footage .fluid>p span{
        float: left;
    }
    footer .footage .fluid>p span + span{
        margin-left: 20px;
    }

    .choosePage{
        padding: 8px 0px;
        clear: both;
    }
    .choosePage>.line{
        padding:5px 0px;
        width: 40px;
        cursor: pointer;
    }
    .choosePage>.line i{
        width: 100%;
        height: 2px;
        background:#888;
        display: block;
        transition: all ease .3s;
    }
    .choosePage>.line:hover i{
        background: #d93e32;
        transform: rotate(-45deg);
    }
    .choosePage a{
        font-size: 14px;
        padding: 0px 25px;
        position: relative;
        cursor: pointer;
        transition: all ease .5s;
    }
    .choosePage a span{
        position: absolute;
        display: block;
        height: 1px;
        top:0px;
        bottom: 0px;
        width: 100%;
        left: 0px;
        margin: auto;
        right: 0px;
        
        transform:rotate(30deg);
    }
    .choosePage a span .line{
        display: block;
        height: 100%;
        width:100%;
        background: #bababa;
        transition: ease all .4s;
        transform-origin: left;
        transform:scaleX(0);
    }
    .choosePage a.current span .line{
        transform:scaleX(1);
    }
    .choosePage a:hover{
        color: #d93e32;
    }
    .choosePage a.ellipsis{
        letter-spacing: 3px;
        cursor: default;
    }